Woźniak Magdalena, Ratajczak Izabela, Wojcieszak Dawid, Waśkiewicz Agnieszka, Szentner Kinga, Przybył Jacek, Borysiak Sławomir, Goliński Piotr
Department of Chemistry, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, 60625 Poznań, Poland.
Department of Biosystems Engineering, Faculty of Environmental Engineering and Mechanical Engineering, Poznań University of Life Sciences, 60627 Poznań, Poland.
Materials (Basel). 2021 Mar 20;14(6):1527. doi: 10.3390/ma14061527.
In the last decade, an increasingly common method of maize stover management is to use it for energy generation, including anaerobic digestion for biogas production. Therefore, the aim of this study was to provide a chemical and structural characterization of maize stover fractions and, based on these parameters, to evaluate the potential application of these fractions, including for biogas production. In the study, maize stover fractions, including cobs, husks, leaves and stalks, were used. The biomass samples were characterized by infrared spectroscopy (FTIR), X-ray diffraction and analysis of elemental composition. Among all maize stover fractions, stalks showed the highest C:N ratio, degree of crystallinity and cellulose and lignin contents. The high crystallinity index of stalks (38%) is associated with their high cellulose content (44.87%). FTIR analysis showed that the spectrum of maize stalks is characterized by the highest intensity of bands at 1512 cm and 1384 cm, which are the characteristic bands of lignin and cellulose. Obtained results indicate that the maize stover fraction has an influence on the chemical and structural parameters. Moreover, presented results indicate that stalks are characterized by the most favorable chemical parameters for biogas production.
在过去十年中，一种越来越常见的玉米秸秆管理方法是将其用于能源生产，包括通过厌氧消化来生产沼气。因此，本研究的目的是对玉米秸秆各部分进行化学和结构表征，并基于这些参数评估这些部分的潜在应用，包括用于沼气生产。在该研究中，使用了玉米秸秆的各个部分，包括玉米芯、苞叶、叶子和茎杆。通过红外光谱（FTIR）、X射线衍射和元素组成分析对生物质样品进行了表征。在所有玉米秸秆部分中，茎杆的碳氮比、结晶度以及纤维素和木质素含量最高。茎杆的高结晶度指数（38%）与其高纤维素含量（44.87%）相关。FTIR分析表明，玉米茎杆的光谱特征是在1512 cm和1384 cm处的谱带强度最高，这是木质素和纤维素的特征谱带。所得结果表明，玉米秸秆部分对化学和结构参数有影响。此外，呈现的结果表明，茎杆具有最有利于沼气生产的化学参数。
